CVE-2021-0326

HIGH

Android - Out-of-bounds Write in p2p_copy_client_info

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 4 public exploits for CVE-2021-0326. PoCs published by ShaikUsaf, nanopathi, Satheesh575555.

AI-analyzed exploit summary This repository contains the source code for wpa_supplicant and hostapd, including build configurations and related files. It does not include a functional exploit or PoC for CVE-2021-0326 but provides the codebase where the vulnerability may exist.

Description

In p2p_copy_client_info of p2p.c, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution if the target device is performing a Wi-Fi Direct search, with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-8.1 Android-9Android ID: A-172937525

Exploits (4)

nomisec WRITEUP
by ShaikUsaf · poc
https://github.com/ShaikUsaf/external_wpa_supplicant_8_AOSP10_r33CVE-2021-0326

This repository contains the source code for wpa_supplicant and hostapd, including build configurations and related files. It does not include a functional exploit or PoC for CVE-2021-0326 but provides the codebase where the vulnerability may exist.

Classification
Writeup 90%
Attack Type
Other
Complexity
Complex
Reliability
Theoretical
Target: wpa_supplicant and hostapd (AOSP10 r33)
No auth needed
Prerequisites: Access to the vulnerable wpa_supplicant/hostapd installation
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WRITEUP
by nanopathi · poc
https://github.com/nanopathi/Packages_wpa_supplicant8_CVE-2021-0326

This repository contains the source code for wpa_supplicant and hostapd, including build configurations and related files. It does not include a functional exploit or proof-of-concept for CVE-2021-0326 but provides the source code base where the vulnerability exists.

Classification
Writeup 90%
Attack Type
Other
Complexity
Moderate
Reliability
Theoretical
Target: wpa_supplicant and hostapd
No auth needed
Prerequisites: Access to the vulnerable wpa_supplicant or hostapd installation
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec WRITEUP
by Satheesh575555 · poc
https://github.com/Satheesh575555/external_wpa_supplicant_8_AOSP10_r33_CVE-2021-0326

This repository contains the source code for wpa_supplicant and hostapd, specifically the AOSP10 r33 version affected by CVE-2021-0326. It includes build configurations and source files but lacks explicit exploit code or detailed technical analysis of the vulnerability.

Classification
Writeup 90%
Attack Type
Other
Complexity
Moderate
Reliability
Theoretical
Target: wpa_supplicant and hostapd (AOSP10 r33)
No auth needed
Prerequisites: Access to vulnerable wpa_supplicant/hostapd installation
devstral-2 · analyzed Feb 18, 2026 Full analysis →
nomisec STUB
by nanopathi · poc
https://github.com/nanopathi/wpa_supplicant_8_CVE-2021-0326.

The repository contains a partial snapshot of the wpa_supplicant/hostapd codebase but lacks any exploit code or technical analysis specific to CVE-2021-0326. The files are standard build and source files without modifications or PoC implementations.

Classification
Stub 90%
Attack Type
Other
Complexity
Trivial
Reliability
Theoretical
Target: wpa_supplicant/hostapd
No auth needed
Prerequisites: None identified
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (5)

Core 5
Core References
Patch, Vendor Advisory x_refsource_misc
https://source.android.com/security/bulletin/2021-02-01
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2021/02/msg00033.html
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2021/dsa-4898

Scores

CVSS v3 7.5
EPSS 0.0471
EPSS Percentile 90.6%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-787
Status published
Products (8)
debian/debian_linux 9.0
debian/debian_linux 10.0
fedoraproject/fedora 32
fedoraproject/fedora 34
google/android 8.1
google/android 9.0
google/android 10.0
google/android 11.0
Published Feb 10, 2021
Tracked Since Feb 18, 2026